Built on Dr. William Albrecht's proven base cation saturation ratios — monitor calcium, magnesium, potassium and moisture levels in real-time, with tailored recommendations for Australian broadacre, viticulture and dairy operations.
Developed by Dr. William Albrecht at the University of Missouri in the 1930s and 40s, the Base Cation Saturation Ratio (BCSR) system changed how we understand soil fertility. Rather than simply applying fixed fertiliser quantities, Albrecht showed that the balance between calcium, magnesium and potassium is what determines soil health and plant performance.
Calcium should occupy 60–70% of your soil's cation exchange sites. Magnesium 10–20%. Potassium 3–5%. When these ratios are right, soil structure improves, nutrient uptake increases, and your crops can reach their genetic potential.
"The soil is the basis of agriculture — and its fertility determines the health of everything that grows from it."
— Dr. William Albert Albrecht, University of MissouriOptimal plant nutrition requires the right Ca:Mg:K ratio (approx. 13:2:1), not simply high levels of any single nutrient.
Calcium increases flocculation and pore space, improving drainage and root penetration. Excess magnesium compacts soil.
Amendment rates are calculated from your soil's Cation Exchange Capacity — ensuring targeted, economical applications.
From cation balance to irrigation scheduling — every measurement your farm needs, on one platform.
Full BCSR analysis measuring CEC, base saturation percentages, pH, organic matter, and macro/micronutrient levels. Fertiliser recommendations tailored to your soil type and target crop.
Get started →Tissue analysis to detect nutrient deficiency or toxicity in real-time. Identifies whether problems stem from soil imbalances or in-season factors — before symptoms become visible yield losses.
Get started →Monitor irrigation water quality including sodium, bicarbonate, pH, and EC. Understand how your water chemistry interacts with soil cation ratios and adjust programmes accordingly.
Get started →True soil health integrates physical, chemical, and biological components. Albrecht's cation balance work addresses the chemical foundation — which in turn improves structure and biology.
Proper Ca:Mg ratios improve soil aggregation and pore space, enhancing drainage, aeration and root penetration. Good structure reduces compaction and tillage requirements over time.
Cation balance governs pH, nutrient availability, and plant uptake efficiency. Monitoring BCSR ratios enables targeted amendments rather than blanket fertiliser applications that can worsen imbalances.
Balanced soil chemistry creates optimal conditions for microbial populations, nutrient cycling, and nitrogen fixation. Soil biology thrives when chemistry and physics are in harmony.
A structured four-step process that turns raw soil data into actionable farm management recommendations.
Collect soil, plant or water samples using our guided protocols — designed to capture accurate profiles at every soil depth.
CEC, BCSR ratios, pH, organic matter, and full macro/micronutrient panels analysed by certified Australian laboratories.
Results are scored against Albrecht's target ranges, adjusted for your soil type, CEC and target crop requirements.
Receive a tailored fertiliser and amendment programme — with real-time monitoring alerts as conditions change.
Crop Monitor was built by agronomists and soil scientists who saw a gap between laboratory soil data and practical farm management. We've taken the rigour of Albrecht's BCSR methodology and made it accessible to every Australian farmer — from Riverina broadacre to Barossa viticulture to Victorian dairy.
Our platform integrates lab results, weather data, soil moisture sensors and irrigation records into a single dashboard — so you spend less time compiling data and more time acting on it.
Whether you're curious about the Albrecht Method, looking to start monitoring, or want a consult on existing soil test results — we're here.